Copy the shared library (.dll, .so, or .bundle) for your platform to the VM directory.
Especially for Mac: {VM}.app/Contents/Resources
Note: Binaries were compiled for 32 bit Cog VM. Cog VM is a default VM for Pharo, but Squeak all-in-one package still includes legacy VM only. So if you would like to use this pre-built plugin on Squeak, get the Cog VM first.